eubank



.1. c. EUBANK-Y SCYTHE'COUPLING. APPLICATION FILED AUG.2I. 1918.

Patented Sept. 16, 1919.

Sevres-s matic Applicat ion filed August 21, 1918. Serial No. 250,791

To all whom it may concernl: 7

'Be it'known that'I, JdrIN Q. EUB'ANK, a citizen of the United States,residing at Campbellsville, in the county of Taylor and Stateof'Kentucky, have invented certain new and useful Improvements in Scythe-Couplings; and I do herebydeclare "the fol lowing to be a. full, clear,and exact descr1'p-' tion of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to scythes and more particularly to means forattaching the scythe blade to the snathe.

The primary object of the inventlon is to provide a clamping sleevewhich can be quickly and readily clamped into positlon to rigidlymaintain the scythe blade shank in fixed relation with the snathe.

A further object of the invention is to provide a split clamping sleeve,the circumferential wall of which is xtended outwardly to provide alongitudinally tapered channel for the reception of the blade shank whenthe latter is placed in operative position upon the flattened side ofthe snathe.

A still further object of the invention is to provide one end of theextended channel portion of the sleeve with a head whereby in the eventthat the sleeve should become casually loosened, it may be driven up onthe taper of the blade shank.

A still further object of the invention is to provide the inner surfaceof the sleeve with a longitudinally disposed row of ratchet teeth whichwill permit of the sleeve being driven up tight on the heel shank andyet prevent its working back or becoming loose.

WVith these and other objects in view, as will appear as the descriptionproceeds, the invention comprises various novel features ofconstruction, combination and arrangement of parts, as will be fullydescribed hereinafter and afterward claimed.

Referring to the drawings:

Figure 1 represents the bottom plan of the connection of the scytheblade with the snathe.

Fig. 2 represents a transverse sectional view taken on a plane indicatedby the line 22 on Fig. l, and

Fi 8 represents a perspective view of the clampin sleeve.

In order t at the construction and operation of the invention may bereadily comprehended by those skilled in the art to which the inventionrelates, I havef illustrated an improved embodiment thereof in the ac:compan'yingdrawings. and will now proceedto fully describe the same, inconnection withs'aid' drawings, in which lie the snathe s fiafiaesaePata- P teatee Sent-Edam having a flattened under side 2 on which thetapered shank 3 of the scythe blade 4: is adapted to rest. The end ofthe shank 3 is provided with an ofi'set lug 5 to lockingly engage withina recess or aperture 6 in the flattened side 2 of the snathe.

In order to rigidly connect the shank to the flattened side of thesnathe, I employ my new and novel construction of clamping sleeve 7 asshown in Fig. 3. This sleeve is split longitudinally and provided withspaced laterally extending flanges 8 which are adapted to be drawntogether by a clamping bolt 9 positioned therethrough.

The circumferential wall of the clamping sleeve is extended outwardly asat 10 to provide a tapering channel 11 extending from one end of thesleeve to the other adapted to receive the tapered shank 8. The smallerend of the outwardly extended portion 10 is provided with a head 12 bywhich the sleeve may be driven on the taper of the shank, if for somereason the sleeve should casually work loose after it has once beenadjusted into position.

The inner surface of the sleeve is provided with a longitudinallyextending row of teeth 13 which are preferably of ratchet formation soas to permit of the clamping sleeve being readily driven up on the taperof the shank, and which will bite into the snathe and prevent the sleevefrom casually working loose or off the taper of the shank 3. It will benoted that the sleeve 7 is split at one side between the ofl'set portion10 which engages the shank 3 and the teeth 13, so that when the bolt 9is tightened, this will force the portion 10 and teeth 13 toward oneanother to clamp the shank against the snathe and to cause the teeth tobite the snathe.

From the foregoing it will be apparent that I have provided a simple andinexpensive clamping sleeve which can be quickly and readily adjustedinto position to rigidly connect the blade shank to the snathe. WVhile Ihave described and illustrated the preferred form of my invention, Idesire to have it understood that such embodying a clamping sleeve.adapted to e slipped over the end of a snathe and to be contractedthereon, said sleeve having a longitudinal outwardly offset portionextending from one end to the other, and tapered from its outward to itssnugly receive thetapered inner end to shank of a scythe blade, saidsleeve being provided on the interior thereof diametrically oppositesaid ofiset portion with invent longitudinal movement of said sleeve,

the sleeve beingsplit atone side between said offset portion and teethto permit the :sleeve to be contracted around the shank and snathe thesleeve having outstanding flanges at the split portion to be movedtoward. one another to contract the sleeve, and means extending throughsaid flanges to move them toward one another.

In testimony whereof I have signed my name to this specification.

' JOHN G. EUBANK.

Oopiu of this patent may be obtained for five cents each, by addressingthe Commissioner ot Patents.

i Wnhington, D. 0.

